1990. Geach, Christopher, Hanany, Shaul, Tan, Chiou Yang, and Tan, Xin Zhi. These files contain trajectory information for long-duration balloons launched from McMurdo Station in Antarctica. These balloons carry payloads ad...
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1990. Balaban, N.H and Minnesota Geological Survey. 9 pls. Scale 1:100,000 and smaller. Pl. 1, data-base; pl. 2, bedrock geology; pl. 3, surficial geology; pl. 4, depth to bedrock and bedrock topogra...
1990. United States. Soil Conservation Service. "April 1990. Base 1005457."; Includes location map. 90 x 94 centimeters Scale 1:50,000. U.S. Dept. of Agriculture, Soil Conservation Service (Washington.).
1990. United States. Soil Conservation Service. Shows land use.; "April 1990. 1001455-01."; Includes location map.; "Base 1001455." 96 x 94 centimeters Scale 1:50,000. The Service (Indianapolis, Ind.?).